-<html>\r
-<head>\r
- <title>The source code</title>\r
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
-</head>\r
-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js"><div id="cls-Ext.dd.DragSource"></div>/**\r
- * @class Ext.dd.DragSource\r
- * @extends Ext.dd.DDProxy\r
- * A simple class that provides the basic implementation needed to make any element draggable.\r
- * @constructor\r
- * @param {Mixed} el The container element\r
- * @param {Object} config\r
- */\r
-Ext.dd.DragSource = function(el, config){\r
- this.el = Ext.get(el);\r
- if(!this.dragData){\r
- this.dragData = {};\r
- }\r
- \r
- Ext.apply(this, config);\r
- \r
- if(!this.proxy){\r
- this.proxy = new Ext.dd.StatusProxy();\r
- }\r
- Ext.dd.DragSource.superclass.constructor.call(this, this.el.dom, this.ddGroup || this.group, \r
- {dragElId : this.proxy.id, resizeFrame: false, isTarget: false, scroll: this.scroll === true});\r
- \r
- this.dragging = false;\r
-};\r
-\r
-Ext.extend(Ext.dd.DragSource, Ext.dd.DDProxy, {\r
- <div id="cfg-Ext.dd.DragSource-ddGroup"></div>/**\r
- * @cfg {String} ddGroup\r
- * A named drag drop group to which this object belongs. If a group is specified, then this object will only\r
- * interact with other drag drop objects in the same group (defaults to undefined).\r
- */\r
- <div id="cfg-Ext.dd.DragSource-dropAllowed"></div>/**\r
- * @cfg {String} dropAllowed\r
- * The CSS class returned to the drag source when drop is allowed (defaults to "x-dd-drop-ok").\r
- */\r
- dropAllowed : "x-dd-drop-ok",\r
- <div id="cfg-Ext.dd.DragSource-dropNotAllowed"></div>/**\r
- * @cfg {String} dropNotAllowed\r
- * The CSS class returned to the drag source when drop is not allowed (defaults to "x-dd-drop-nodrop").\r
- */\r
- dropNotAllowed : "x-dd-drop-nodrop",\r
-\r
- <div id="method-Ext.dd.DragSource-getDragData"></div>/**\r
- * Returns the data object associated with this drag source\r
- * @return {Object} data An object containing arbitrary data\r
- */\r
- getDragData : function(e){\r
- return this.dragData;\r
- },\r
-\r
- // private\r
- onDragEnter : function(e, id){\r
- var target = Ext.dd.DragDropMgr.getDDById(id);\r
- this.cachedTarget = target;\r
- if(this.beforeDragEnter(target, e, id) !== false){\r
- if(target.isNotifyTarget){\r
- var status = target.notifyEnter(this, e, this.dragData);\r
- this.proxy.setStatus(status);\r
- }else{\r
- this.proxy.setStatus(this.dropAllowed);\r
- }\r
- \r
- if(this.afterDragEnter){\r
- <div id="method-Ext.dd.DragSource-afterDragEnter"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * when the dragged item enters the drop target by providing an implementation.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @method afterDragEnter\r
- */\r
- this.afterDragEnter(target, e, id);\r
- }\r
- }\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-beforeDragEnter"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * before the dragged item enters the drop target and optionally cancel the onDragEnter.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @return {Boolean} isValid True if the drag event is valid, else false to cancel\r
- */\r
- beforeDragEnter : function(target, e, id){\r
- return true;\r
- },\r
-\r
- // private\r
- alignElWithMouse: function() {\r
- Ext.dd.DragSource.superclass.alignElWithMouse.apply(this, arguments);\r
- this.proxy.sync();\r
- },\r
-\r
- // private\r
- onDragOver : function(e, id){\r
- var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);\r
- if(this.beforeDragOver(target, e, id) !== false){\r
- if(target.isNotifyTarget){\r
- var status = target.notifyOver(this, e, this.dragData);\r
- this.proxy.setStatus(status);\r
- }\r
-\r
- if(this.afterDragOver){\r
- <div id="method-Ext.dd.DragSource-afterDragOver"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * while the dragged item is over the drop target by providing an implementation.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @method afterDragOver\r
- */\r
- this.afterDragOver(target, e, id);\r
- }\r
- }\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-beforeDragOver"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * while the dragged item is over the drop target and optionally cancel the onDragOver.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @return {Boolean} isValid True if the drag event is valid, else false to cancel\r
- */\r
- beforeDragOver : function(target, e, id){\r
- return true;\r
- },\r
-\r
- // private\r
- onDragOut : function(e, id){\r
- var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);\r
- if(this.beforeDragOut(target, e, id) !== false){\r
- if(target.isNotifyTarget){\r
- target.notifyOut(this, e, this.dragData);\r
- }\r
- this.proxy.reset();\r
- if(this.afterDragOut){\r
- <div id="method-Ext.dd.DragSource-afterDragOut"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * after the dragged item is dragged out of the target without dropping.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @method afterDragOut\r
- */\r
- this.afterDragOut(target, e, id);\r
- }\r
- }\r
- this.cachedTarget = null;\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-beforeDragOut"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action before the dragged\r
- * item is dragged out of the target without dropping, and optionally cancel the onDragOut.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @return {Boolean} isValid True if the drag event is valid, else false to cancel\r
- */\r
- beforeDragOut : function(target, e, id){\r
- return true;\r
- },\r
- \r
- // private\r
- onDragDrop : function(e, id){\r
- var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);\r
- if(this.beforeDragDrop(target, e, id) !== false){\r
- if(target.isNotifyTarget){\r
- if(target.notifyDrop(this, e, this.dragData)){ // valid drop?\r
- this.onValidDrop(target, e, id);\r
- }else{\r
- this.onInvalidDrop(target, e, id);\r
- }\r
- }else{\r
- this.onValidDrop(target, e, id);\r
- }\r
- \r
- if(this.afterDragDrop){\r
- <div id="method-Ext.dd.DragSource-afterDragDrop"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * after a valid drag drop has occurred by providing an implementation.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dropped element\r
- * @method afterDragDrop\r
- */\r
- this.afterDragDrop(target, e, id);\r
- }\r
- }\r
- delete this.cachedTarget;\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-beforeDragDrop"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action before the dragged\r
- * item is dropped onto the target and optionally cancel the onDragDrop.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @return {Boolean} isValid True if the drag drop event is valid, else false to cancel\r
- */\r
- beforeDragDrop : function(target, e, id){\r
- return true;\r
- },\r
-\r
- // private\r
- onValidDrop : function(target, e, id){\r
- this.hideProxy();\r
- if(this.afterValidDrop){\r
- /**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * after a valid drop has occurred by providing an implementation.\r
- * @param {Object} target The target DD \r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dropped element\r
- * @method afterInvalidDrop\r
- */\r
- this.afterValidDrop(target, e, id);\r
- }\r
- },\r
-\r
- // private\r
- getRepairXY : function(e, data){\r
- return this.el.getXY(); \r
- },\r
-\r
- // private\r
- onInvalidDrop : function(target, e, id){\r
- this.beforeInvalidDrop(target, e, id);\r
- if(this.cachedTarget){\r
- if(this.cachedTarget.isNotifyTarget){\r
- this.cachedTarget.notifyOut(this, e, this.dragData);\r
- }\r
- this.cacheTarget = null;\r
- }\r
- this.proxy.repair(this.getRepairXY(e, this.dragData), this.afterRepair, this);\r
-\r
- if(this.afterInvalidDrop){\r
- <div id="method-Ext.dd.DragSource-afterInvalidDrop"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action\r
- * after an invalid drop has occurred by providing an implementation.\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dropped element\r
- * @method afterInvalidDrop\r
- */\r
- this.afterInvalidDrop(e, id);\r
- }\r
- },\r
-\r
- // private\r
- afterRepair : function(){\r
- if(Ext.enableFx){\r
- this.el.highlight(this.hlColor || "c3daf9");\r
- }\r
- this.dragging = false;\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-beforeInvalidDrop"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action after an invalid\r
- * drop has occurred.\r
- * @param {Ext.dd.DragDrop} target The drop target\r
- * @param {Event} e The event object\r
- * @param {String} id The id of the dragged element\r
- * @return {Boolean} isValid True if the invalid drop should proceed, else false to cancel\r
- */\r
- beforeInvalidDrop : function(target, e, id){\r
- return true;\r
- },\r
-\r
- // private\r
- handleMouseDown : function(e){\r
- if(this.dragging) {\r
- return;\r
- }\r
- var data = this.getDragData(e);\r
- if(data && this.onBeforeDrag(data, e) !== false){\r
- this.dragData = data;\r
- this.proxy.stop();\r
- Ext.dd.DragSource.superclass.handleMouseDown.apply(this, arguments);\r
- } \r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-onBeforeDrag"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action before the initial\r
- * drag event begins and optionally cancel it.\r
- * @param {Object} data An object containing arbitrary data to be shared with drop targets\r
- * @param {Event} e The event object\r
- * @return {Boolean} isValid True if the drag event is valid, else false to cancel\r
- */\r
- onBeforeDrag : function(data, e){\r
- return true;\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-onStartDrag"></div>/**\r
- * An empty function by default, but provided so that you can perform a custom action once the initial\r
- * drag event has begun. The drag cannot be canceled from this function.\r
- * @param {Number} x The x position of the click on the dragged object\r
- * @param {Number} y The y position of the click on the dragged object\r
- */\r
- onStartDrag : Ext.emptyFn,\r
-\r
- // private override\r
- startDrag : function(x, y){\r
- this.proxy.reset();\r
- this.dragging = true;\r
- this.proxy.update("");\r
- this.onInitDrag(x, y);\r
- this.proxy.show();\r
- },\r
-\r
- // private\r
- onInitDrag : function(x, y){\r
- var clone = this.el.dom.cloneNode(true);\r
- clone.id = Ext.id(); // prevent duplicate ids\r
- this.proxy.update(clone);\r
- this.onStartDrag(x, y);\r
- return true;\r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-getProxy"></div>/**\r
- * Returns the drag source's underlying {@link Ext.dd.StatusProxy}\r
- * @return {Ext.dd.StatusProxy} proxy The StatusProxy\r
- */\r
- getProxy : function(){\r
- return this.proxy; \r
- },\r
-\r
- <div id="method-Ext.dd.DragSource-hideProxy"></div>/**\r
- * Hides the drag source's {@link Ext.dd.StatusProxy}\r
- */\r
- hideProxy : function(){\r
- this.proxy.hide(); \r
- this.proxy.reset(true);\r
- this.dragging = false;\r
- },\r
-\r
- // private\r
- triggerCacheRefresh : function(){\r
- Ext.dd.DDM.refreshCache(this.groups);\r
- },\r
-\r
- // private - override to prevent hiding\r
- b4EndDrag: function(e) {\r
- },\r
-\r
- // private - override to prevent moving\r
- endDrag : function(e){\r
- this.onEndDrag(this.dragData, e);\r
- },\r
-\r
- // private\r
- onEndDrag : function(data, e){\r
- },\r
- \r
- // private - pin to cursor\r
- autoOffset : function(x, y) {\r
- this.setDelta(-12, -20);\r
- } \r
-});</pre> \r
-</body>\r
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>The source code</title>
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
+</head>
+<body onload="prettyPrint();">
+ <pre class="prettyprint lang-js">/*!
+ * Ext JS Library 3.3.1
+ * Copyright(c) 2006-2010 Sencha Inc.
+ * licensing@sencha.com
+ * http://www.sencha.com/license
+ */
+<div id="cls-Ext.dd.DragSource"></div>/**
+ * @class Ext.dd.DragSource
+ * @extends Ext.dd.DDProxy
+ * A simple class that provides the basic implementation needed to make any element draggable.
+ * @constructor
+ * @param {Mixed} el The container element
+ * @param {Object} config
+ */
+Ext.dd.DragSource = function(el, config){
+ this.el = Ext.get(el);
+ if(!this.dragData){
+ this.dragData = {};
+ }
+
+ Ext.apply(this, config);
+
+ if(!this.proxy){
+ this.proxy = new Ext.dd.StatusProxy();
+ }
+ Ext.dd.DragSource.superclass.constructor.call(this, this.el.dom, this.ddGroup || this.group,
+ {dragElId : this.proxy.id, resizeFrame: false, isTarget: false, scroll: this.scroll === true});
+
+ this.dragging = false;
+};
+
+Ext.extend(Ext.dd.DragSource, Ext.dd.DDProxy, {
+ <div id="cfg-Ext.dd.DragSource-ddGroup"></div>/**
+ * @cfg {String} ddGroup
+ * A named drag drop group to which this object belongs. If a group is specified, then this object will only
+ * interact with other drag drop objects in the same group (defaults to undefined).
+ */
+ <div id="cfg-Ext.dd.DragSource-dropAllowed"></div>/**
+ * @cfg {String} dropAllowed
+ * The CSS class returned to the drag source when drop is allowed (defaults to "x-dd-drop-ok").
+ */
+ dropAllowed : "x-dd-drop-ok",
+ <div id="cfg-Ext.dd.DragSource-dropNotAllowed"></div>/**
+ * @cfg {String} dropNotAllowed
+ * The CSS class returned to the drag source when drop is not allowed (defaults to "x-dd-drop-nodrop").
+ */
+ dropNotAllowed : "x-dd-drop-nodrop",
+
+ <div id="method-Ext.dd.DragSource-getDragData"></div>/**
+ * Returns the data object associated with this drag source
+ * @return {Object} data An object containing arbitrary data
+ */
+ getDragData : function(e){
+ return this.dragData;
+ },
+
+ // private
+ onDragEnter : function(e, id){
+ var target = Ext.dd.DragDropMgr.getDDById(id);
+ this.cachedTarget = target;
+ if(this.beforeDragEnter(target, e, id) !== false){
+ if(target.isNotifyTarget){
+ var status = target.notifyEnter(this, e, this.dragData);
+ this.proxy.setStatus(status);
+ }else{
+ this.proxy.setStatus(this.dropAllowed);
+ }
+
+ if(this.afterDragEnter){
+ <div id="method-Ext.dd.DragSource-afterDragEnter"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * when the dragged item enters the drop target by providing an implementation.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @method afterDragEnter
+ */
+ this.afterDragEnter(target, e, id);
+ }
+ }
+ },
+
+ <div id="method-Ext.dd.DragSource-beforeDragEnter"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * before the dragged item enters the drop target and optionally cancel the onDragEnter.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @return {Boolean} isValid True if the drag event is valid, else false to cancel
+ */
+ beforeDragEnter : function(target, e, id){
+ return true;
+ },
+
+ // private
+ alignElWithMouse: function() {
+ Ext.dd.DragSource.superclass.alignElWithMouse.apply(this, arguments);
+ this.proxy.sync();
+ },
+
+ // private
+ onDragOver : function(e, id){
+ var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);
+ if(this.beforeDragOver(target, e, id) !== false){
+ if(target.isNotifyTarget){
+ var status = target.notifyOver(this, e, this.dragData);
+ this.proxy.setStatus(status);
+ }
+
+ if(this.afterDragOver){
+ <div id="method-Ext.dd.DragSource-afterDragOver"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * while the dragged item is over the drop target by providing an implementation.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @method afterDragOver
+ */
+ this.afterDragOver(target, e, id);
+ }
+ }
+ },
+
+ <div id="method-Ext.dd.DragSource-beforeDragOver"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * while the dragged item is over the drop target and optionally cancel the onDragOver.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @return {Boolean} isValid True if the drag event is valid, else false to cancel
+ */
+ beforeDragOver : function(target, e, id){
+ return true;
+ },
+
+ // private
+ onDragOut : function(e, id){
+ var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);
+ if(this.beforeDragOut(target, e, id) !== false){
+ if(target.isNotifyTarget){
+ target.notifyOut(this, e, this.dragData);
+ }
+ this.proxy.reset();
+ if(this.afterDragOut){
+ <div id="method-Ext.dd.DragSource-afterDragOut"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * after the dragged item is dragged out of the target without dropping.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @method afterDragOut
+ */
+ this.afterDragOut(target, e, id);
+ }
+ }
+ this.cachedTarget = null;
+ },
+
+ <div id="method-Ext.dd.DragSource-beforeDragOut"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action before the dragged
+ * item is dragged out of the target without dropping, and optionally cancel the onDragOut.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @return {Boolean} isValid True if the drag event is valid, else false to cancel
+ */
+ beforeDragOut : function(target, e, id){
+ return true;
+ },
+
+ // private
+ onDragDrop : function(e, id){
+ var target = this.cachedTarget || Ext.dd.DragDropMgr.getDDById(id);
+ if(this.beforeDragDrop(target, e, id) !== false){
+ if(target.isNotifyTarget){
+ if(target.notifyDrop(this, e, this.dragData)){ // valid drop?
+ this.onValidDrop(target, e, id);
+ }else{
+ this.onInvalidDrop(target, e, id);
+ }
+ }else{
+ this.onValidDrop(target, e, id);
+ }
+
+ if(this.afterDragDrop){
+ <div id="method-Ext.dd.DragSource-afterDragDrop"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * after a valid drag drop has occurred by providing an implementation.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dropped element
+ * @method afterDragDrop
+ */
+ this.afterDragDrop(target, e, id);
+ }
+ }
+ delete this.cachedTarget;
+ },
+
+ <div id="method-Ext.dd.DragSource-beforeDragDrop"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action before the dragged
+ * item is dropped onto the target and optionally cancel the onDragDrop.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @return {Boolean} isValid True if the drag drop event is valid, else false to cancel
+ */
+ beforeDragDrop : function(target, e, id){
+ return true;
+ },
+
+ // private
+ onValidDrop : function(target, e, id){
+ this.hideProxy();
+ if(this.afterValidDrop){
+ /**
+ * An empty function by default, but provided so that you can perform a custom action
+ * after a valid drop has occurred by providing an implementation.
+ * @param {Object} target The target DD
+ * @param {Event} e The event object
+ * @param {String} id The id of the dropped element
+ * @method afterInvalidDrop
+ */
+ this.afterValidDrop(target, e, id);
+ }
+ },
+
+ // private
+ getRepairXY : function(e, data){
+ return this.el.getXY();
+ },
+
+ // private
+ onInvalidDrop : function(target, e, id){
+ this.beforeInvalidDrop(target, e, id);
+ if(this.cachedTarget){
+ if(this.cachedTarget.isNotifyTarget){
+ this.cachedTarget.notifyOut(this, e, this.dragData);
+ }
+ this.cacheTarget = null;
+ }
+ this.proxy.repair(this.getRepairXY(e, this.dragData), this.afterRepair, this);
+
+ if(this.afterInvalidDrop){
+ <div id="method-Ext.dd.DragSource-afterInvalidDrop"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action
+ * after an invalid drop has occurred by providing an implementation.
+ * @param {Event} e The event object
+ * @param {String} id The id of the dropped element
+ * @method afterInvalidDrop
+ */
+ this.afterInvalidDrop(e, id);
+ }
+ },
+
+ // private
+ afterRepair : function(){
+ if(Ext.enableFx){
+ this.el.highlight(this.hlColor || "c3daf9");
+ }
+ this.dragging = false;
+ },
+
+ <div id="method-Ext.dd.DragSource-beforeInvalidDrop"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action after an invalid
+ * drop has occurred.
+ * @param {Ext.dd.DragDrop} target The drop target
+ * @param {Event} e The event object
+ * @param {String} id The id of the dragged element
+ * @return {Boolean} isValid True if the invalid drop should proceed, else false to cancel
+ */
+ beforeInvalidDrop : function(target, e, id){
+ return true;
+ },
+
+ // private
+ handleMouseDown : function(e){
+ if(this.dragging) {
+ return;
+ }
+ var data = this.getDragData(e);
+ if(data && this.onBeforeDrag(data, e) !== false){
+ this.dragData = data;
+ this.proxy.stop();
+ Ext.dd.DragSource.superclass.handleMouseDown.apply(this, arguments);
+ }
+ },
+
+ <div id="method-Ext.dd.DragSource-onBeforeDrag"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action before the initial
+ * drag event begins and optionally cancel it.
+ * @param {Object} data An object containing arbitrary data to be shared with drop targets
+ * @param {Event} e The event object
+ * @return {Boolean} isValid True if the drag event is valid, else false to cancel
+ */
+ onBeforeDrag : function(data, e){
+ return true;
+ },
+
+ <div id="method-Ext.dd.DragSource-onStartDrag"></div>/**
+ * An empty function by default, but provided so that you can perform a custom action once the initial
+ * drag event has begun. The drag cannot be canceled from this function.
+ * @param {Number} x The x position of the click on the dragged object
+ * @param {Number} y The y position of the click on the dragged object
+ */
+ onStartDrag : Ext.emptyFn,
+
+ // private override
+ startDrag : function(x, y){
+ this.proxy.reset();
+ this.dragging = true;
+ this.proxy.update("");
+ this.onInitDrag(x, y);
+ this.proxy.show();
+ },
+
+ // private
+ onInitDrag : function(x, y){
+ var clone = this.el.dom.cloneNode(true);
+ clone.id = Ext.id(); // prevent duplicate ids
+ this.proxy.update(clone);
+ this.onStartDrag(x, y);
+ return true;
+ },
+
+ <div id="method-Ext.dd.DragSource-getProxy"></div>/**
+ * Returns the drag source's underlying {@link Ext.dd.StatusProxy}
+ * @return {Ext.dd.StatusProxy} proxy The StatusProxy
+ */
+ getProxy : function(){
+ return this.proxy;
+ },
+
+ <div id="method-Ext.dd.DragSource-hideProxy"></div>/**
+ * Hides the drag source's {@link Ext.dd.StatusProxy}
+ */
+ hideProxy : function(){
+ this.proxy.hide();
+ this.proxy.reset(true);
+ this.dragging = false;
+ },
+
+ // private
+ triggerCacheRefresh : function(){
+ Ext.dd.DDM.refreshCache(this.groups);
+ },
+
+ // private - override to prevent hiding
+ b4EndDrag: function(e) {
+ },
+
+ // private - override to prevent moving
+ endDrag : function(e){
+ this.onEndDrag(this.dragData, e);
+ },
+
+ // private
+ onEndDrag : function(data, e){
+ },
+
+ // private - pin to cursor
+ autoOffset : function(x, y) {
+ this.setDelta(-12, -20);
+ },
+
+ destroy: function(){
+ Ext.dd.DragSource.superclass.destroy.call(this);
+ Ext.destroy(this.proxy);
+ }
+});</pre>
+</body>
git.ithinksw.org / extjs.git / blobdiff